The force layout settled roughly square, so in a wide band the graph sat as a small island. Vertical centring now pulls nearly three times as hard as horizontal and the seed sits on an ellipse, which settles at about 2.2:1 without stretching the circles or the edges. The graph also slid in on load: the rebuild fit ran with a 300ms duration, so React Flow animated the pan from its default viewport to the content. The fit is instant now, and the canvas grows in from the centre with `scaleIn` once it has a layout. The pinned chart header said "Esc clears", which a phone cannot act on. It carries the same "× Clear" button as the list header instead; Escape still works.
394 lines
13 KiB
TypeScript
394 lines
13 KiB
TypeScript
import { useQuery, useQueryClient } from "@tanstack/react-query"
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import { ChevronDown, ChevronRight, X } from "lucide-react"
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import { useEffect, useState } from "react"
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import type { EventRow, HistoryPoint } from "@/client"
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import { UplotChart } from "@/components/Common/UplotChart"
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import { useEngineEvents } from "@/components/Flow/liveStore"
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import { PANEL_SECTION } from "@/components/Flow/SidePanel"
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import { Button } from "@/components/ui/button"
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import { cn, compact } from "@/lib/utils"
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import {
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ago,
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auditQueryOptions,
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CARD,
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clock,
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deadLetterQueryOptions,
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failuresQueryOptions,
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healthKeys,
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minuteOf,
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minuteRunsQueryOptions,
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runsQueryOptions,
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timeseriesQueryOptions,
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} from "./queries"
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/** How much of each list is shown while it is not tied to a moment. */
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const RUNS_SHOWN = 15
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const FAILURES_SHOWN = 25
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/**
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* A moment picked off a chart.
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*
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* Hovering previews it, so the list under the pointer scrubs along with the
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* cursor. A click holds it: reading the list means moving the pointer off the
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* chart, and a held moment ignores the cursor until it is released.
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*/
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function useMoment() {
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const [hovered, setHovered] = useState<number | null>(null)
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const [pinned, setPinned] = useState<number | null>(null)
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useEffect(() => {
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if (pinned === null) return
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const release = (event: KeyboardEvent) => {
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if (event.key === "Escape") setPinned(null)
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}
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window.addEventListener("keydown", release)
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return () => window.removeEventListener("keydown", release)
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}, [pinned])
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return {
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/** The minute the paired list is showing, or null for all of it. */
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at: pinned ?? hovered,
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pinned,
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onCursor: setHovered,
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onSelect: (ts: number | null) =>
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setPinned((held) => (ts === null || ts === held ? null : ts)),
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release: () => setPinned(null),
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}
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}
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type Moment = ReturnType<typeof useMoment>
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/**
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* The way out of a held moment, on both the chart that set it and the list it
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* drives — the same control in both places, because it is the same action.
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*
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* A control rather than the Escape hint it replaces on the chart: a phone has
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* no Escape key. The shortcut still works, it is just no longer the only way.
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*/
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function ClearPin({ moment }: { moment: Moment }) {
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return (
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<Button
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variant="ghost"
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size="sm"
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className="-my-1 gap-1 px-2 text-xs"
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onClick={moment.release}
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aria-label="Clear the pinned moment"
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>
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<X className="size-3" />
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Clear
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</Button>
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)
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}
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/** One chart, and the moment it hands to its list. */
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function Chart({
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title,
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labels,
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plots,
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moment,
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}: {
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title: string
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labels: string[]
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plots: HistoryPoint[][]
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moment: Moment
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}) {
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return (
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<div
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className={cn(
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CARD,
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"flex h-64 flex-col",
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moment.pinned !== null && "border-primary",
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)}
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>
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<div className="flex items-baseline justify-between gap-2">
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<h2 className={PANEL_SECTION}>{title}</h2>
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{moment.pinned !== null ? (
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<ClearPin moment={moment} />
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) : (
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<span className="text-xs text-muted-foreground">click to pin</span>
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)}
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</div>
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<UplotChart
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labels={labels}
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plots={plots}
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empty="Nothing has run yet."
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onCursor={moment.onCursor}
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onSelect={moment.onSelect}
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/>
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</div>
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)
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}
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/** What a list is showing, and the way back to all of it. */
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function ListHeader({ title, moment }: { title: string; moment: Moment }) {
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return (
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<div className="flex min-h-6 flex-wrap items-center gap-2">
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<h2 className={PANEL_SECTION}>{title}</h2>
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{moment.at !== null ? (
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<span className="text-xs text-muted-foreground">
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{moment.pinned !== null ? "pinned to" : "showing"} {clock(moment.at)}
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</span>
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) : null}
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{moment.pinned !== null ? <ClearPin moment={moment} /> : null}
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</div>
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)
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}
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function Failure({ event }: { event: EventRow }) {
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const [open, setOpen] = useState(false)
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const [first, ...rest] = event.detail.split("\n")
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return (
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<div className="border-b border-border py-2 last:border-0">
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<button
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type="button"
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className="flex w-full items-start gap-2 text-left"
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onClick={() => setOpen(!open)}
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disabled={rest.length === 0}
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>
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{rest.length ? (
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open ? (
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<ChevronDown className="mt-0.5 size-4 shrink-0 text-muted-foreground" />
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) : (
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<ChevronRight className="mt-0.5 size-4 shrink-0 text-muted-foreground" />
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)
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) : (
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<span className="size-4 shrink-0" />
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)}
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<span className="min-w-0 flex-1">
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<span className="font-mono text-sm">
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{event.node || event.flow || "engine"}
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</span>
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<span className="ml-2 text-sm text-muted-foreground">{first}</span>
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</span>
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<span className="shrink-0 text-xs text-muted-foreground">
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{ago(event.ts)}
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</span>
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</button>
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{open && rest.length ? (
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<pre className="mt-2 max-h-64 overflow-auto rounded-md border border-border bg-muted/40 p-3 font-mono text-xs">
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{rest.join("\n")}
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</pre>
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) : null}
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</div>
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)
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}
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/**
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* What the engine has been doing, as charts over a day and the records behind
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* them.
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*
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* The two charts each drive the list beside them: throughput picks the runs of
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* a minute, failures and timing picks that minute's failures.
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*/
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export function HealthActivity() {
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const live = useEngineEvents()
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const queryClient = useQueryClient()
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const runsAt = useMoment()
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const failuresAt = useMoment()
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const { data: series } = useQuery(timeseriesQueryOptions())
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const { data: runs } = useQuery(runsQueryOptions())
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const { data: pinnedRuns } = useQuery(minuteRunsQueryOptions(runsAt.pinned))
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const { data: failures } = useQuery(failuresQueryOptions())
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const { data: audit } = useQuery(auditQueryOptions())
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const { data: dead } = useQuery(deadLetterQueryOptions())
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// Something just went wrong on the socket. The row for it is written on the
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// collector's next flush, so the refetch waits that out rather than asking
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// for a failure the database does not have yet.
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//
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// The newest event's minute, not the count: the count stops changing once the
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// ring is full, and a per-event key would let a flapping node restart the
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// timer forever without it ever firing.
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const seen = live.length ? Math.floor(live[live.length - 1].ts / 60) : 0
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useEffect(() => {
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if (!seen) return
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const timer = setTimeout(() => {
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queryClient.invalidateQueries({ queryKey: healthKeys.events })
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queryClient.invalidateQueries({ queryKey: healthKeys.summary })
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}, 16000)
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return () => clearTimeout(timer)
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}, [seen, queryClient])
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const points = series ?? []
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const at = (
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pick: (point: (typeof points)[number]) => number,
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): HistoryPoint[] =>
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points.map((point) => ({ ts: point.ts, value: pick(point) }))
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// A pin is read back from the server, so it reaches a minute the recent list
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// is nowhere near deep enough to hold. A hover stays the client-side preview
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// it is: scrubbing a day's chart would otherwise be a request per minute the
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// pointer rests on.
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const shownRuns =
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runsAt.pinned !== null
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? (pinnedRuns ?? [])
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: runsAt.at === null
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? (runs ?? []).slice(0, RUNS_SHOWN)
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: (runs ?? []).filter((run) => minuteOf(run.started_at) === runsAt.at)
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const shownFailures =
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failuresAt.at === null
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? (failures ?? []).slice(0, FAILURES_SHOWN)
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: (failures ?? []).filter((event) => minuteOf(event.ts) === failuresAt.at)
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return (
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<>
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<section className="grid gap-4 lg:grid-cols-2">
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<Chart
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title="Throughput per minute"
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labels={["messages", "executions"]}
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plots={[
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at((point) => point.messages),
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at((point) => point.executions),
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]}
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moment={runsAt}
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/>
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<Chart
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title="Failures and timing (ms)"
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labels={["errors", "avg", "lag"]}
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plots={[
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at((point) => point.errors),
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at((point) => point.avg_ms),
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at((point) => point.avg_lag_ms),
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]}
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moment={failuresAt}
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/>
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</section>
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<section className="grid content-start gap-4 lg:grid-cols-2">
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<div className="grid content-start gap-3">
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<ListHeader title="Recent runs" moment={runsAt} />
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<div
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className={cn(
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CARD,
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// Capped rather than as long as it happens to be: the two lists
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// sit side by side, and a filtered one is meant to be scrolled.
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"max-h-96 overflow-y-auto",
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runsAt.pinned !== null && "border-primary",
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)}
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data-testid="recent-runs"
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>
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{shownRuns.length ? (
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shownRuns.map((run) => (
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<div
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key={run.id}
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className="flex items-baseline gap-3 border-b border-border py-2 text-sm last:border-0"
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>
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<span className="min-w-0 flex-1 truncate font-mono">
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{run.flow}
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</span>
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<span className="text-xs text-muted-foreground">
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{run.source}
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</span>
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<span
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className={
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run.status === "error"
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? "text-destructive"
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: run.status === "ok"
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? "text-status-success"
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: "text-muted-foreground"
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}
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>
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{run.status}
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</span>
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<span className="w-16 text-right text-muted-foreground">
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{compact(run.duration_ms)} ms
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</span>
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<span className="w-16 text-right text-xs text-muted-foreground">
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{ago(run.started_at)}
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</span>
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</div>
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))
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) : (
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<p className="text-sm text-muted-foreground">
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{runsAt.at === null
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? "No runs recorded yet."
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: runsAt.pinned !== null
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? "Nothing ran in this minute."
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: "No run from this minute is in the recent list."}
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</p>
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)}
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</div>
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</div>
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<div className="grid content-start gap-3">
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<ListHeader title="Failures" moment={failuresAt} />
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<div
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className={cn(
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CARD,
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"max-h-96 overflow-y-auto",
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failuresAt.pinned !== null && "border-primary",
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)}
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data-testid="failures"
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>
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{shownFailures.length ? (
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shownFailures.map((event) => (
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<Failure key={event.id} event={event} />
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))
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) : (
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<p className="text-sm text-muted-foreground">
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{failuresAt.at === null
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? "Nothing has failed in the last day."
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: "Nothing failed in this minute."}
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</p>
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)}
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</div>
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</div>
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</section>
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{dead?.length ? (
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<section className="grid gap-3">
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<h2 className={PANEL_SECTION}>Given up on</h2>
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<div className={CARD}>
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{dead.map((item) => (
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<div
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key={item.id}
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className="flex items-baseline gap-3 border-b border-border py-2 text-sm last:border-0"
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>
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<span className="min-w-0 flex-1 truncate font-mono">
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{item.node}
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</span>
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<span className="text-muted-foreground">{item.reason}</span>
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<span className="text-xs text-muted-foreground">
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{ago(item.ts)}
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</span>
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</div>
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))}
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</div>
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</section>
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) : null}
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<section className="grid gap-3">
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<h2 className={PANEL_SECTION}>Changes</h2>
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<div className={CARD}>
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{audit?.length ? (
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audit.map((event) => (
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<div
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key={event.id}
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className="flex items-baseline gap-3 border-b border-border py-2 text-sm last:border-0"
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>
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<span className="min-w-0 flex-1 truncate">
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{event.actor} {event.detail}
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{event.flow ? (
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<span className="ml-1 font-mono text-muted-foreground">
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{event.flow}
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</span>
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) : null}
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</span>
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<span className="shrink-0 text-xs text-muted-foreground">
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{ago(event.ts)}
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</span>
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</div>
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))
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) : (
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<p className="text-sm text-muted-foreground">
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Nothing has changed yet.
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</p>
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)}
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</div>
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</section>
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</>
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)
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}
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